| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * |
| * Copyright (c) 1999 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Xalan" and "Apache Software Foundation" must |
| * not be used to endorse or promote products derived from this |
| * software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * nor may "Apache" appear in their name, without prior written |
| * permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation and was |
| * originally based on software copyright (c) 1999, Lotus |
| * Development Corporation., http://www.lotus.com. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| package org.apache.xalan.extensions; |
| |
| import org.w3c.dom.Node; |
| import org.w3c.dom.DocumentFragment; |
| import org.w3c.dom.traversal.NodeIterator; |
| |
| import org.apache.xalan.transformer.TransformerImpl; |
| import org.apache.xalan.transformer.ResultTreeHandler; |
| import org.apache.xalan.templates.Stylesheet; |
| import org.apache.xml.utils.QName; |
| |
| import javax.xml.transform.TransformerException; |
| |
| import org.apache.xpath.objects.XObject; |
| import org.apache.xpath.objects.XString; |
| import org.apache.xpath.objects.XBoolean; |
| import org.apache.xpath.objects.XNumber; |
| import org.apache.xpath.objects.XRTreeFrag; |
| import org.apache.xpath.objects.XNodeSet; |
| import org.apache.xpath.XPathContext; |
| |
| // import org.apache.xalan.xslt.*; |
| |
| /** |
| * <meta name="usage" content="general"/> |
| * Provides transformer context to be passed to an extension element. |
| * |
| * @author Sanjiva Weerawarana (sanjiva@watson.ibm.com) |
| */ |
| public class XSLProcessorContext |
| { |
| |
| /** |
| * Create a processor context to be passed to an extension. |
| * (Notice it is a package-only constructor). |
| * |
| * @param transformer non-null transformer instance |
| * @param stylesheetTree The owning stylesheet |
| * @param sourceTree The source document |
| * @param sourceNode The current source node |
| * @param mode the current mode being executed. |
| */ |
| public XSLProcessorContext(TransformerImpl transformer, |
| Stylesheet stylesheetTree, Node sourceTree, |
| Node sourceNode, QName mode) |
| { |
| |
| this.transformer = transformer; |
| this.stylesheetTree = stylesheetTree; |
| this.mode = mode; |
| this.sourceTree = sourceTree; |
| this.sourceNode = sourceNode; |
| } |
| |
| /** An instance of a transformer */ |
| private TransformerImpl transformer; |
| |
| /** |
| * Get the transformer. |
| * |
| * @return the transformer instance for this context |
| */ |
| public TransformerImpl getTransformer() |
| { |
| return transformer; |
| } |
| |
| /** The owning stylesheet for this context */ |
| private Stylesheet stylesheetTree; |
| |
| /** |
| * Get the Stylesheet being executed. |
| * |
| * @return the Stylesheet being executed. |
| */ |
| public Stylesheet getStylesheet() |
| { |
| return stylesheetTree; |
| } |
| |
| /** The root of the source tree being executed. */ |
| private Node sourceTree; |
| |
| /** |
| * Get the root of the source tree being executed. |
| * |
| * @return the root of the source tree being executed. |
| */ |
| public Node getSourceTree() |
| { |
| return sourceTree; |
| } |
| |
| /** the current context node. */ |
| private Node sourceNode; |
| |
| /** |
| * Get the current context node. |
| * |
| * @return the current context node. |
| */ |
| public Node getContextNode() |
| { |
| return sourceNode; |
| } |
| |
| /** the current mode being executed. */ |
| private QName mode; |
| |
| /** |
| * Get the current mode being executed. |
| * |
| * @return the current mode being executed. |
| */ |
| public QName getMode() |
| { |
| return mode; |
| } |
| |
| /** |
| * Output an object to the result tree by doing the right conversions. |
| * This is public for access by extensions. |
| * |
| * |
| * @param stylesheetTree The owning stylesheet |
| * @param obj the Java object to output. If its of an X<something> type |
| * then that conversion is done first and then sent out. |
| * |
| * @throws TransformerException |
| * @throws java.io.FileNotFoundException |
| * @throws java.io.IOException |
| * @throws java.net.MalformedURLException |
| */ |
| public void outputToResultTree(Stylesheet stylesheetTree, Object obj) |
| throws TransformerException, java.net.MalformedURLException, |
| java.io.FileNotFoundException, java.io.IOException |
| { |
| |
| try |
| { |
| ResultTreeHandler rtreeHandler = transformer.getResultTreeHandler(); |
| XObject value; |
| |
| // Make the return object into an XObject because it |
| // will be easier below. One of the reasons to do this |
| // is to keep all the conversion functionality in the |
| // XObject classes. |
| if (obj instanceof XObject) |
| { |
| value = (XObject) obj; |
| } |
| else if (obj instanceof String) |
| { |
| value = new XString((String) obj); |
| } |
| else if (obj instanceof Boolean) |
| { |
| value = new XBoolean(((Boolean) obj).booleanValue()); |
| } |
| else if (obj instanceof Double) |
| { |
| value = new XNumber(((Double) obj).doubleValue()); |
| } |
| else if (obj instanceof DocumentFragment) |
| { |
| value = new XRTreeFrag((DocumentFragment) obj); |
| } |
| else if (obj instanceof Node) |
| { |
| value = new XNodeSet((Node) obj); |
| } |
| else if (obj instanceof NodeIterator) |
| { |
| value = new XNodeSet((NodeIterator) obj); |
| } |
| else |
| { |
| value = new XString(obj.toString()); |
| } |
| |
| int type = value.getType(); |
| String s; |
| |
| switch (type) |
| { |
| case XObject.CLASS_BOOLEAN : |
| case XObject.CLASS_NUMBER : |
| case XObject.CLASS_STRING : |
| s = value.str(); |
| |
| rtreeHandler.characters(s.toCharArray(), 0, s.length()); |
| break; |
| case XObject.CLASS_NODESET : // System.out.println(value); |
| NodeIterator nl = value.nodeset(); |
| Node pos; |
| |
| while (null != (pos = nl.nextNode())) |
| { |
| Node top = pos; |
| |
| while (null != pos) |
| { |
| rtreeHandler.flushPending(); |
| rtreeHandler.cloneToResultTree(pos, true); |
| |
| Node nextNode = pos.getFirstChild(); |
| |
| while (null == nextNode) |
| { |
| if (Node.ELEMENT_NODE == pos.getNodeType()) |
| { |
| rtreeHandler.endElement("", "", pos.getNodeName()); |
| } |
| |
| if (top == pos) |
| break; |
| |
| nextNode = pos.getNextSibling(); |
| |
| if (null == nextNode) |
| { |
| pos = pos.getParentNode(); |
| |
| if (top == pos) |
| { |
| if (Node.ELEMENT_NODE == pos.getNodeType()) |
| { |
| rtreeHandler.endElement("", "", pos.getNodeName()); |
| } |
| |
| nextNode = null; |
| |
| break; |
| } |
| } |
| } |
| |
| pos = nextNode; |
| } |
| } |
| break; |
| case XObject.CLASS_RTREEFRAG : |
| rtreeHandler.outputResultTreeFragment(value, |
| transformer.getXPathContext()); |
| break; |
| } |
| } |
| catch(org.xml.sax.SAXException se) |
| { |
| throw new TransformerException(se); |
| } |
| } |
| |
| /** |
| * I need a "Node transformNode (Node)" method somewhere that the |
| * user can call to process the transformation of a node but not |
| * serialize out automatically. ???????????????? |
| * |
| * Does ElemTemplateElement.executeChildTemplates() cut it? It sends |
| * results out to the stream directly, so that could be a problem. |
| */ |
| } |